practica de geoquimica n° 3

UNIVERSIDAD NACIONAL MAYOR DE SAN MARCOSFundada en 1551FACULTAD DE INGENIERIA GEOLOGICA, MINERA, METALURGICA Y GEOGRAFICA

Practica N2:

Elementos mayores rocas volcanicas

Geoqumica generalCURSO

Mag. Ing. Hugo Rivera MantillaPROFESOR

Anthony Mandujano AdrianznALUMNO

Lima - Per2015

PRACTICA DE GEOQUIMICA GENERAL 3ELEMENTOS MAYORES ROCAS VOLCANICAS1.- DADO LOS RESULTADOS DE LOS ANALISIS GEOQUIMICOS DE ROCA TOTALGRUPO TOQUEPALA

No891011121314

MuestraPER1/XRF/BPER1/XRF/CPER1/XRF/DPER1/XRF/EPER1/XRF/FPER1/XRF/GPER1/XRF/H

CuadrnguloMoqueguaMoqueguaMoqueguaMoqueguaMoqueguaMoqueguaMoquegua

Coordenadas8103299810329981032998103299810329981032998103299

299135299135299135299135299135299135299135

Tipo de rocaLavasLavasLavasLavasLavasLavasLavas

SiO274.2774.8173.974.474.6571.1774.79

TiO20.160.160.160.150.160.250.17

Al2O312.5412.4312.5612.5412.5713.7912.75

Fe2O31.411.411.51.351.351.681.36

FeO0.130.130.160.130.130.040.13

MnO0.050.050.050.040.050.080.06

MgO0.390.350.40.350.360.30.29

CaO1.191.071.131.061.090.591.2

Na2O3.123.163.113.123.12.433.1

K2O4.064.274.354.234.315.84.41

P2O50.060.030.050.040.050.060.04

H2O0.210.510.480.470.380.930.48

CO20.210.21110.2

LOI1.781.571.391.511.42.651.51

TOTAL99.57100.9599.44100.39100.6100.77100.49

1.- Recalcular la base de datos eliminando los voltiles y otros fluidos y ajustando al 100%.Respuesta. Recalculando sobre base anhidra de los datos y utilizando la formula obtenemos:

GRUPO TOQUEPALA

No891011121314

MuestraPER1/XRF/BPER1/XRF/CPER1/XRF/DPER1/XRF/EPER1/XRF/FPER1/XRF/GPER1/XRF/H

CuadrnguloMoqueguaMoqueguaMoqueguaMoqueguaMoqueguaMoqueguaMoquegua

Coordenadas8103299810329981032998103299810329981032998103299

299135299135299135299135299135299135299135

Tipo de rocaLavasLavasLavasLavasLavasLavasLavas

SiO276.2776.4475.9076.3876.3173.9976.08

TiO20.160.160.160.150.160.260.17

Al2O312.8812.7012.9012.8712.8514.3412.97

Fe2O31.451.441.541.391.381.751.38

FeO0.130.130.160.130.130.040.13

MnO0.050.050.050.040.050.080.06

MgO0.400.360.410.360.370.310.30

CaO1.221.091.161.091.110.611.22

Na2O3.203.233.193.203.172.533.15

K2O4.174.364.474.344.416.034.49

P2O50.060.030.050.040.050.060.04

Total100100100100100100100

2.- Calcular las proporciones moleculares, numero de cationes y proporciones catinicas de cada anlisis de rocas.

Muestra 8

xidosWT%Peso molecularProp. molecularesNro de cationesProp. Cationicas

SiO276.2760.091.269211.2692

TiO20.1679.900.002110.0021

Al2O312.88101.960.126320.2526

Fe2O31.45159.690.009120.0182

FeO0.1371.850.001910.0019

MnO0.0570.940.000710.0007

MgO0.4040.300.0110.01

CaO1.2256.080.021810.0218

Na2O3.2061.980.051720.1034

K2O4.1794.200.044320.0886

P2O50.06141.950.000420.0008

Total100

Muestra 9


SiO276.4460.091.272111.2721

TiO20.1679.900.00210.002

Al2O312.70101.960.124620.2492

Fe2O31.44159.690.00920.018

FeO0.1371.850.001910.0019

MnO0.0570.940.000710.0007

MgO0.3640.300.008910.0089

CaO1.0956.080.019510.0195

Na2O3.2361.980.052120.1042

K2O4.3694.200.046320.0926

P2O50.03141.950.000220.0004

Total100

Muestra 10


SiO275.9060.091.26311.263

TiO20.1679.900.002110.0021

Al2O312.90101.960.126520.253

Fe2O31.54159.690.009620.0192

FeO0.1671.850.002310.0023

MnO0.0570.940.000710.0007

MgO0.4140.300.010210.0102

CaO1.1656.080.020710.0207

Na2O3.1961.980.051520.103

K2O4.4794.200.047420.0948

P2O50.05141.950.000420.0008

Total100

Muestra 11


SiO276.3860.091.271111.2711

TiO20.1579.900.001910.0019

Al2O312.87101.960.126320.2526

Fe2O31.39159.690.008720.0174

FeO0.1371.850.001910.0019

MnO0.0470.940.000610.0006

MgO0.3640.300.008910.0089

CaO1.0956.080.019410.0194

Na2O3.2061.980.051720.1034

K2O4.3494.200.046120.0922

P2O50.04141.950.000320.0006

Total100

Muestra 12


SiO276.3160.091.2711.27

TiO20.1679.900.002110.0021

Al2O312.85101.960.12620.252

Fe2O31.38159.690.008620.0172

FeO0.1371.850.001910.0019

MnO0.0570.940.000710.0007

MgO0.3740.300.009110.0091

CaO1.1156.080.019910.0199

Na2O3.1761.980.051120.1022

K2O4.4194.200.046820.0936

P2O50.05141.950.000420.0008

Total100

Muestra 13


SiO273.9960.091.231311.2313

TiO20.2679.900.003310.0033

Al2O314.34101.960.140620.2812

Fe2O31.75159.690.010920.0218

FeO0.0471.850.000610.0006

MnO0.0870.940.001210.0012

MgO0.3140.300.007710.0077

CaO0.6156.080.010910.0109

Na2O2.5361.980.040820.0816

K2O6.0394.200.06420.128

P2O50.06141.950.000420.0008

Total100

Muestra 14


SiO276.0860.091.266211.2662

TiO20.1779.900.002210.0022

Al2O312.97101.960.127220.2544

Fe2O31.38159.690.008720.0174

FeO0.1371.850.001810.0018

MnO0.0670.940.000910.0009

MgO0.3040.300.007310.0073

CaO1.2256.080.021810.0218

Na2O3.1561.980.050920.1018

K2O4.4994.200.047620.0952

P2O50.04141.950.000320.0006

Total100

3.- Convertir los valores de hierro en hierro total, en hierro frrico total y hierro ferroso total.

Hierro\ Muestra891011121314

Fe2O31.4481.4411.5411.3861.381.7471.384

FeO0.1340.1330.1640.1340.1330.0420.132

Fe total1.5821.5741.7051.521.5131.7891.516

Fe2O3 total1.5971.5891.7231.5351.5281.7941.531

FeO total1.4391.4311.5521.3831.3761.6161.379

4.-Clasificar los anlisis de rocas de acuerdo a la saturacin de almina. Graficar en columna apilada y dispersin.Muestra 8

OxidoW%Peso MoleclarProp Moleculares

Al2O312.88101.960.1263

CaO1.2256.080.0218

Na2O3.2061.980.0517

K2O4.1794.20.0443

K2O + Na2O + CaO0.12

K2O + Na2O 0.10

Muestra 8

Al2O30.13


PERALUMINOSA

Muestra 9


Al2O312.70101.960.1246

CaO1.0956.080.0195

Na2O3.2361.980.0521

K2O4.3694.20.0463


K2O + Na2O 0.10

Muestra 9

Al2O30.125


PERALUMINOSA

Muestra 10


Al2O312.90101.960.1265

CaO1.1656.080.0207

Na2O3.1961.980.0515

K2O4.4794.20.0474


K2O + Na2O 0.10

Muestra 10

Al2O30.13


PERALUMINOSA

Muestra 11


Al2O312.87101.960.1263

CaO1.0956.080.0194

Na2O3.2061.980.0517

K2O4.3494.20.0461


K2O + Na2O 0.10

Muestra 11

Al2O30.13


PERALUMINOSA

Muestra 12


Al2O312.85101.960.126

CaO1.1156.080.0199

Na2O3.1761.980.0511

K2O4.4194.20.0468


K2O + Na2O 0.10

Muestra 12

Al2O30.13


PERALUMINOSA

Muestra 13


Al2O314.34101.960.1406

CaO0.6156.080.0109

Na2O2.5361.980.0408

K2O6.0394.20.064


K2O + Na2O 0.10

Muestra 13

Al2O30.14


PERALUMINOSA

Muestra 14


Al2O312.97101.960.1272

CaO1.2256.080.0218

Na2O3.1561.980.0509

K2O4.4994.20.0476


K2O + Na2O 0.10

Muestra 14

Al2O30.13


PERALUMINOSA

GRAFICA DE DISPERSION

5.- Obtener las correlaciones bivariables de los xidos mayores vs SiO2. Hacer un cuadro.SiO276.2776.4475.8976.3876.3173.9976.08

TiO20.160.160.160.150.160.260.17

Al2O312.8812.712.8912.8712.8514.3412.97

Fe2O31.451.441.541.391.381.751.38

FeO0.130.130.160.130.130.040.13

MnO0.050.050.050.040.050.080.06

MgO0.40.360.410.360.370.310.29

CaO1.221.091.161.091.110.611.22

Na2O3.23.233.193.23.172.533.15

K2O4.174.364.474.344.416.034.49

P2O50.060.030.050.040.050.060.04

6.- Construir los diagramas de Harker de los xidos mayores vs SiO2

7.- Clasificar las rocas de acuerdo al diagrama de TAS. (SiO2 vs Na2O+K2O) %SiO2Na2O + K2O

Muestra #876.277.37

Muestra #976.447.59

Muestra #1075.897.66

Muestra #1176.387.54

Muestra #1276.317.58

Muestra #1373.998.56

Muestra #1476.087.64

8.- Clasificar rocas de acuerdo al diagrama de Irvine-Baragar siO2 vs Na2O+K2OSiO2Na2O + K2O

Muestra #876.277.37

Muestra #976.447.59

Muestra #1075.897.66

Muestra #1176.387.54

Muestra #1276.317.58

Muestra #1373.998.56

Muestra #1476.087.64

9.- clasificar las rocas de acuerdo al diagrama de Ringwood SiO2 vs K2OSiO2K2O

Muestra #876.274.17

Muestra #976.444.36

Muestra #1075.894.47

Muestra #1176.384.34

Muestra #1276.314.41

Muestra #1373.996.03

Muestra #1476.084.49

practica de geoquimica n° 3

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